Stair-carpet fastener.



G. W. DEATRIGH, SB. STAIR CARPET FASTENER.

APPLICATION FILED APR.11, 1911.

1,033,678. I latefite'd July 23,1912.

(lumen:

COLUMBIA PLANOURAFH co., WASHINGTON, D. a.

UNTTED STATES PATENT QFFKQE.

GEORGE W. DEATRIGH, $3., OF SCHUYLKILL HAVEN, PENNSYLVANIA.

STAIR- CARPET FASTENER.

To all whom it may concern:

Be it known that I, GEORGE W. DEATRICH, Sn, a citizen of the UnitedStates, residing at Schuylkill Haven, in the county of Schuylkill andState of Pennsylvania, have invented new and useful Improvements inStair-Carpet Fasteners, of which the following is a specification.

This invention relates to stair carpet fasteners, and one of theprincipal objects of. the invention is the provision of a simple andefiicient device of this character which may be cheaply constructed andwhich is conveniently applied or detached.

A further object of the invention is the provision of a device of thischaracter constructed of a single strand of spring wire and in such amanner that the carpet will be bound firmly to the tread and to theriser.

Further objects of the invention will ap pear as the following specificdescription is read in connection with the accompanying drawing, whichforms a part of this application, and in which Figure 1 is a frontelevation of a single step showing one of the devices applied thereto.Fig. 2 is a sectional view through the step showing one of the devicesin side elevation. Fig. 3 is a detail front elevation of one of thedevices removed from the stair. Fig. 4 is a horizontal section throughthe device showing the base of the same in top plan view. Fig. 5 is adetail edge elevat-ion.

Referring more particularly to the drawing, 1 represents the tread of astair, 2 the riser thereof and 3 the carpet extending over the riser andtread.

The carpet 3 is secured to the tread and riser by means of a pair offastening devices arranged at opposite sides of the step, only one ofwhich is shown herewith. Each of these devices is constructed of asingle strand of spring wire whose base portion t is bent upwardly andoutwardly, as shown at 5, to produce a tread and riser bearing, as willhereinafter be described. One end of the base is bent back upon itselflying at an angle thereto and the terminal end of this bent back portionextends down across the base in the form of a penetrating prong 6Specification of Letters Patent.

Application filed April 11, 1911.

Patented July 23, 1912.

Serial No. 620,336.

which is shown slightly offset, as at 7 The opposite end of the base isbent upwardly in the form of a long spring arm 8 which is curvedoutwardly and has its upper end bent at an obtuse angle. The terminalend of the obtusely bent portion is bent into a penetrating prong orpoint 9.

In applying each of the devices the penetrating prong 6 is passedthrough the carpet and pressed or driven into the tread, while the prongis in vertical position and its body angularly offset from the riser.The arm 8 is then forced over toward the riser and then bent downwardlyso as to bring the prong 9 beneath the overhang 10 of the tread,thespring in the arm serving to hold the prong 6 and the base inengagement with the tread and riser. When the arm is forced back towardthe riser the prong will be arranged at an angle to the riser and thebody of the prong or the portion which is bent across the base will lieparallel with the riser. This action will also carry the ends of thebase into tight enga 'ement with the riser and the curve in t e armcauses the same to engage the riser throughout all of its length, thusbinding the carpet firmly thereto.

,I-Iaving thus described the invention, what I claim as new is A staircarpet fastener comprisingasingle strand of wire bent to provide anofiset base, one end of said base being bent back upon itself, the bentportion lying at an angle to the base and extending across the same andforming a penetrating prong, an elongated spring arm integral with theopposite end of the base and arranged at an angle thereto and in adirection reverse to that of the bent end of the base, the upper end ofsaid spring being bent at an obtuse angle and formed to provide apenetrating prong, said prongs being adapted to penetrate a carpet andengage the upper and lower surfaces of the lower and upper stair treadsrespectively.

In testimony whereof I aflix my signature in presence of two witnesses.

GEORGE W. DEATRICH, Sn.

WVitnesses:

E. EnMoNs'roN, Jr., L. E. WALTERS.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, I). G.

